Contact
Send us a question about a material, its documentation or our timeline. A person reads every message and replies by email.
General inquiry
Materials, specifications, documentation, quality concerns or complaints. You'll get a reference number when it's sent.
Common questions
Who can buy from ASTEL Labs?
Researchers aged 21 or older, buying for in-vitro laboratory research in the United States. Every order includes a research-use confirmation, and we cancel and refund orders that suggest any other use.
Where do product identifiers come from?
Formula, molecular weight and CAS number are taken from PubChem and cited on each product page. Where PubChem has no record for a compound, the page says so rather than filling the gap.
How do I get a certificate of analysis?
Enter the lot number from the vial label on the COA page. Reports appear there under their lot number as the testing laboratory issues them; if a lot has no published report yet, the page says so.
Who tests the materials?
Each published report names the laboratory that performed the analysis, its methods and the date. ASTEL Labs does not operate a laboratory.
How long does delivery take?
Each size shows where it ships from. US stock usually arrives in 2–5 business days; sizes from our international warehouse usually take 10–15 business days because they clear customs. Every order is tracked.
Do I need an account?
No. You can check out as a guest with just your email and shipping address. An account is optional: it keeps your order history and saved address, and lets you reorder in one click.
Can you advise on how to use a material?
No. Materials are described for in-vitro laboratory research only. We do not answer questions about use in humans or animals, dosing or preparation.